[Theology Based Education; An Investigation at Integrated Islamic Elementary School]. The objective of this research was both to investigate the dimension of education theology applied by an integrated Islamic elementary school namely SDIT Nurul Ilmi Jambi and to reveal the meaning of those application. This was a qualitative research in which the researcher used non-participant observation, in–depth interview, and documentation to gather the data. The data was analyzed by a flow model technique. To check the validity, the researcher employed credibility /transferability and conformability. The finding showed that the notion on Islamic theology was implied in the curriculum frameworks, instructional designs (teaching and learning process), institutional development, and teachers’ professional development.